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Altera_Forum's avatar
Altera_Forum
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9 years ago

DE5Net + nios2 + linux + DDR3 2GB

Hi, I'm trying to boot linux on nios2 with 2GB of ram having some problem. All the examples I saw are using 128MB of memory which fits in the low 512MB of physical memory region. 2GB of memory can be...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

Hi,

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Then would it be possible to have two memory modules in non-contiguous physical memory space? For example, can I have a small memory (256MB) for the kernel below 0x20000000 and have one 2GB memory at top physical memory space? I'm not sure if the nios2 linux can fully use both memory modules.

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Of course it is possible. With MMU, you can also make two non-contiguous memories look like a single contiguous memory.

Kazu